Introduce NotifySubjectType (#16320)

* Introduce NotifySubjectType

* update swagger docs

modules/convert/notification.go

@@ -27,7 +27,7 @@ func ToNotificationThread(n *models.Notification) *api.NotificationThread {
 	//handle Subject
 	switch n.Source {
 	case models.NotificationSourceIssue:
-		result.Subject = &api.NotificationSubject{Type: "Issue"}
+		result.Subject = &api.NotificationSubject{Type: api.NotifySubjectIssue}
 		if n.Issue != nil {
 			result.Subject.Title = n.Issue.Title
 			result.Subject.URL = n.Issue.APIURL()
@@ -38,7 +38,7 @@ func ToNotificationThread(n *models.Notification) *api.NotificationThread {
 			}
 		}
 	case models.NotificationSourcePullRequest:
-		result.Subject = &api.NotificationSubject{Type: "Pull"}
+		result.Subject = &api.NotificationSubject{Type: api.NotifySubjectPull}
 		if n.Issue != nil {
 			result.Subject.Title = n.Issue.Title
 			result.Subject.URL = n.Issue.APIURL()
@@ -55,13 +55,13 @@ func ToNotificationThread(n *models.Notification) *api.NotificationThread {
 		}
 	case models.NotificationSourceCommit:
 		result.Subject = &api.NotificationSubject{
-			Type:  "Commit",
+			Type:  api.NotifySubjectCommit,
 			Title: n.CommitID,
 			URL:   n.Repository.HTMLURL() + "/commit/" + n.CommitID,
 		}
 	case models.NotificationSourceRepository:
 		result.Subject = &api.NotificationSubject{
-			Type:  "Repository",
+			Type:  api.NotifySubjectRepository,
 			Title: n.Repository.FullName(),
 			URL:   n.Repository.Link(),
 		}

modules/structs/notifications.go

@@ -21,14 +21,28 @@ type NotificationThread struct {
 
 // NotificationSubject contains the notification subject (Issue/Pull/Commit)
 type NotificationSubject struct {
-	Title            string    `json:"title"`
-	URL              string    `json:"url"`
-	LatestCommentURL string    `json:"latest_comment_url"`
-	Type             string    `json:"type" binding:"In(Issue,Pull,Commit)"`
-	State            StateType `json:"state"`
+	Title            string            `json:"title"`
+	URL              string            `json:"url"`
+	LatestCommentURL string            `json:"latest_comment_url"`
+	Type             NotifySubjectType `json:"type" binding:"In(Issue,Pull,Commit)"`
+	State            StateType         `json:"state"`
 }
 
 // NotificationCount number of unread notifications
 type NotificationCount struct {
 	New int64 `json:"new"`
 }
+
+// NotifySubjectType represent type of notification subject
+type NotifySubjectType string
+
+const (
+	// NotifySubjectIssue an issue is subject of an notification
+	NotifySubjectIssue NotifySubjectType = "Issue"
+	// NotifySubjectPull an pull is subject of an notification
+	NotifySubjectPull NotifySubjectType = "Pull"
+	// NotifySubjectCommit an commit is subject of an notification
+	NotifySubjectCommit NotifySubjectType = "Commit"
+	// NotifySubjectRepository an repository is subject of an notification
+	NotifySubjectRepository NotifySubjectType = "Repository"
+)

templates/swagger/v1_json.tmpl

@@ -15241,8 +15241,7 @@
           "x-go-name": "Title"
         },
         "type": {
-          "type": "string",
-          "x-go-name": "Type"
+          "$ref": "#/definitions/NotifySubjectType"
         },
         "url": {
           "type": "string",
@@ -15286,6 +15285,11 @@
       },
       "x-go-package": "code.gitea.io/gitea/modules/structs"
     },
+    "NotifySubjectType": {
+      "description": "NotifySubjectType represent type of notification subject",
+      "type": "string",
+      "x-go-package": "code.gitea.io/gitea/modules/structs"
+    },
     "OAuth2Application": {
       "type": "object",
       "title": "OAuth2Application represents an OAuth2 application.",